Bra Size Conversion: EU, US & UK Chart

A German bra size like 75B is a 34B in the US and UK. The reason: the band is measured in centimetres in Germany and the EU, but in inches in the US and UK. The cup letters only start to diverge from the E-cup upwards. This guide walks you through converting your bra size step by step, with a table and concrete examples.

Understanding bra sizes: band and cup

Every bra size has two parts: the band and the cup. The band is the number (for example 75), the cup is the letter (for example B).

The band measures the circumference directly under your bust. In Germany and the EU this value is given in centimetres, in five-centimetre steps: 70, 75, 80 and so on. In the US and UK there is an inch number instead: 32, 34, 36.

The cup size is not absolute. It is the difference between your bust and your underbust measurement. Important: a B-cup on a band of 70 holds a different volume than a B-cup on a band of 90. The letter only tells you something about the actual volume together with the band.

Converting the band (EU/DE to US/UK)

The band is the easier part. Five centimetres in the EU size equal two inches in the US and UK size. The common sizes look like this:

EU / Germany (cm)	US / UK (inches)
70	32
75	34
80	36
85	38
90	40
95	42

As a rule of thumb, each five centimetres up in the EU band adds two inches in the US and UK band. The table is the quickest reference, because the systems do not round in a perfectly linear way.

Converting cups (and why it gets tricky from E up)

In the lower range, the cup letters are the same in the EU, the UK and the US. They only start to diverge from the E-cup, because the UK and US use double letters.

EU / Germany	UK	US
A	A	A
B	B	B
C	C	C
D	D	D
E	DD	DD

So a German E-cup is not a US E-cup, it is a DD. Above E the systems differ even more, because the UK and US move on with further double letters. If you sit above an E-cup, it is always worth checking the specific size chart of the brand, since cuts vary too.

Full conversion with examples

Here is how the conversion looks for a few typical sizes, with band and cup combined:

EU / Germany	US / UK
70B	32B
75B	34B
75C	34C
80C	36C
85D	38D
75E	34DD

You convert the band first using the first table, then adjust the cup letter. From A to D the letter stays the same, an E-cup becomes a DD.

Finding your size at erlich

At erlich you will find bras in band widths from 70 to 95 and in cups A to E, which is around 30 sister-size combinations. If you know your German size, you can go straight ahead: you do not need an inch conversion in the German shop.

If you are looking for a new bra now, browse the bras and bralettes. If your bra does not sit perfectly despite the right size, sister sizes often help: neighbouring sizes with the same cup volume. We explain how that works in our article on sister sizes.

Frequently Asked Questions

What is 75B in US sizes?

A German 75B is a 34B in the US and UK. The band 75 (cm) becomes 34 (inches), and the B-cup stays the same in all three systems in the lower range.

How do I convert my band from centimetres to inches?

The simplest way is the conversion table: 70 cm is 32 inches, 75 cm is 34 inches, 80 cm is 36 inches and so on. Each five centimetres more equal two inches more.

Is a German E-cup the same as a US E-cup?

No. A German E-cup is a DD in the UK and US, not an E. That is because the UK and US use double letters from the D range up. Above E the letters shift further.

Which bra sizes does erlich offer?

erlich offers band widths from 70 to 95 and cups A to E, so around 30 sister sizes. Wireless styles also come in letter sizes from XS to XXL, or clothing sizes 34 to 46. As a rule, at erlich textil size M or 38 corresponds to a 75B.

What do I do if my converted size does not fit?

It depends on whether the cup or the band does not fit. Sister sizes can help, and you will also find them in our size charts. Our sister-size article shows you how to find the right one.